HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2217

PERIOD COVERED:  0000Z (UTC) 09/25/98 - 0000Z (UTC) 09/28/98

Daily Status Report as of 271/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Nine Sets of WF/PC-2 7712 (WF/PC-2 Cycle 7 Supplemental
Darks pt2/3)

       The WF/PC-2 was used to make a series of Cycle 7 supplemental
calibration darks.  This dark calibration program obtains three dark frames
every day to provide data for monitoring and characterizing the evolution
of hot pixels.  The observations were executed as scheduled, and no
anomalies were noted.

   1.2 Completed NIC/27726 (NICMOS One Orbit Parallel)

       The Near Infrared Camera (Camera Two) was used to make a one orbit
parallel calibration observations.  The observations were executed as
scheduled, and no anomalies were noted.

   1.3 Completed Six Sets of STIS/CCD 7948 (CCD Dark and Bias Monitor --
Cont. to Dec. 98)

       The Space Telescope Imaging Spectrograph (CCD) was used to measure
CCD dark current and bias rates for the two supported amplifier settings
{GAIN=1 and GAIN=4} in order to gather data for making superdarks and
superbiases.  The data will be used to track the growth of hot pixels on
the CCD in general and within the various target acquisition apertures
specifically.  The observations were executed as scheduled, and no
anomalies were noted.

   1.4 Completed NIC/3 7863 (The Nature of Gamma-Ray Burster Host Galaxies)

       The Near Infrared Camera (Camera Three) was used to study the nature
of a gamma-ray burster in the host galaxy GRB971214.  Of the two thousand
gamma-ray bursts detected in the last twenty-five years, only two have
identified optical counterparts.  The observations were executed as
scheduled, and no problems were reported.

   1.5 Completed Seventeen Sets of STIS/CCD 8062 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal Continuation)

       The Space Telescope Imaging Spectrograph (CCD) was used to make high
galactic latitude observations take in parallel with the prime science
observations.  The observations were completed as planned, and no problems
were reported.

   1.6 Completed Six Sets of WF/PC-2 7909 (POMS Test Proposal: WF II
Parallel Archive Proposal)

       The WF/PC-2 was used to make parallel observations as part of the
POMS test proposal.  This test proposal is designed to simulate scientific
plans.  The observations were completed as planned, and no problems were
reported.

   1.7 Completed Four Sets of STIS/CCD 8064 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal - Backup)

       The Space Telescope Imaging Spectrograph (CCD) was used to conduct a
non-scripted parallel POMS test.  The observations were completed as
scheduled, and no problems were reported.

   1.8 Completed Two Sets of NIC/1/2/3 7883 (Infrared Imaging of High
Redshift {0.4 <= z <= 1} Tully-Fisher Galaxies)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of the high redshifted Tully-
Fisher class galaxies GSS-094-22 and CP1-MDS-03.  With the advent of 10
meter class telescopes combined with the high spatial resolution of the
HST, it is now possible to study the internal kinematics and structural
properties of galaxies out to a redshift of z ~ 1.  The observations were
completed as planned, and no anomalies were reported.

   1.9 Completed Three Sets of WF/PC-2 8061 (POMS Test Proposal: WF-II
Backup Parallel Archive Proposal)

       This is a POMS test proposal designed to simulate scientific plans.
The proposal was executed as planned, and no anomalies were reported.

   1.10 Completed Five Sets of NIC/2 7226 (Search for Massive Jupiters)

       The Near Infrared Camera (Camera Two) was used to make a corographic
search for massive planets around nearby, young main sequence stars.
Because of the extreme youth of these objects, any low-mass brown dwarf and
planetary companions will still be in a higher luminosity phase and thus
easily detectable.  A dark calibration image was also taken.  The
observations were executed as scheduled, and no anomalies were noted.

   1.11 Completed WF/PC-2 7463 (Proper Motion of the Sagittarius Dwarf Galaxy)

       The unique spatial resolution of the WF/PC-2 was used to determine
the proper motion of the Sagittarius dwarf galaxy SGR-DSPH4.  The
observation was completed with no reported problems.

   1.12 Completed  WF/PC-2 6745 (Fundamental Plane, Morphology-Density
Relation, and Lensing in the z=0.58 Arc Cluster CL2053)

       The WF/PC-2 was used to make observations of the galactic cluster
Gal-Clus-2053 in order to study its fundamental plane structure, its
morphology-density relation, and its lensing.  The distribution of
{post}starburst galaxies and/or mergers as a function of radius will be of
particular interest.  The mass distribution will be determined from the
distortion of background galaxies by weak lensing.  The observations were
executed as scheduled, and no anomalies were noted.

   1.13 Completed Nine Sets of NIC/2/3 8082 (NICMOS pure parallel Fall 98)

       The Near Infrared Camera (Cameras Two and Three) was used to make
pure parallel observations while another instrument is prime.  The
observations were executed as scheduled, and no anomalies were noted.

   1.14 Completed NIC/1/2 7213 (High Resolution Imaging of "Warm"
Hyperluminous Infrared Galaxies)

       The Near Infrared Camera (Cameras One and Two) was used to make high
resolution infrared images of the "warm" hyperluminous galaxy MRK231 in
order to expand our knowledge of their complicated relationship with the
QSO phenomenon.  The observations were executed as scheduled, and no
anomalies were noted.

   1.15 Completed Two Sets of NIC/1/2/3 7893 (The Two Types of BL Lac
Objects: Extrema of Jet Physics)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of the BL Lac objects PG1418+546 and S50454+844.  These
observations will build on the WF/PC-2 survey of a well-defined sample of
97 BL Lac objects, for which host galaxies were detected in 90 simulations
predict ~100 provide essential constraints on galaxy properties ---
luminosity, size, morphology, and color --- including an unprecedented
ensemble of host galaxy color profiles at subarcsecond spatial resolution.
The observations were executed as scheduled, and no anomalies were noted.

   1.16 Completed Two Sets of WF/PC-2 6776 (A Comparative HST Imaging Study
of Radio Galaxies and Hosts)

       A clear understanding of the nature of the host galaxies of
radio-quiet quasars, radio-loud quasars and radio galaxies is of central
importance in any attempt to unify and relate the three main classes of
powerful active galaxies.  Existing HST studies of quasar hosts, whilst
producing many interesting new results, have yielded surprisingly little
hard information on the properties of the hosts themselves.  This imaging
study using the WF/PC-2 will remedy this situation by undertaking redder,
line-free observations of AGN PKS0230-02.  The proposal completed with no
reported problems.

   1.17 Completed Two sets of NIC/2 7887 (A Survey of Gravitational Lenses
as Cosmological Tools II)

       The Near Infrared Camera (Camera Two) was used to make observations
of the gravitational lens candidate system FBQ0951+26.  The purpose is to
extend our IR survey of gravitational lenses and gravitational lens
candidates by obtaining NICMOS images of 14 additional lens systems or
candidates.  The observations were executed as scheduled, and no anomalies
were noted.

   1.18 Completed NIC/1/2/3 7886 (NICMOS Snap Shot Survey of Early-Type
Galaxies)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of the early-type galaxy NGC-1052 as part of a snap-shot
broad-band imaging survey.  Since almost all early-type galaxies harbor
dust, these images which are less sensitive to extinction and will provide
superior light profiles for dynamical studies of the cores of these
galaxies.  The observations were completed as scheduled, and no problems
were reported.

   1.19 Completed WF/PC-2 6813 (The Oldest Star Clusters of Local Group
Irregular Galaxies)

       The WF/PC-2 was used to make observations of the oldest star
clusters located in the irregular galaxies of the Local Group Galactic
Cluster.  Globular clusters of spiral and elliptical galaxies are well-
studied and they have provided much information on the early histories of
these types of galaxies. For irregular galaxies, however, very little is
known about the globular clusters and other old clusters.  The observations
were executed as scheduled, and no anomalies were noted.

1.20 Completed Six Sets of STIS/CCD 7912 (STIS Parallel Archive Proposal -
Nearby Galaxies - Imaging and Spectroscopy)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
parallel observations of nearby galaxies.  This survey will be useful to
study the star formation histories, chemical evolution, and distances to
these galaxies.  These data will be placed immediately into the Hubble Data
Archive.  The observations were completed as scheduled, and no problems
were reported.

   1.21 Completed Two Sets of NIC/2 7233 (Dust Disks Around Main Sequence
Stars)

       The Near Infrared Camera (Camera Two) was used to make observations
of the dust disk around the main sequence star Epsilon-Er.  The
observations were made with the coronagraph to minimize the effects of
glare from the bright central star.  A dark calibration image was also
taken.  The observations were completed as scheduled, and no anomalies were
reported.

   1.22 Completed NIC/2 7834 (A Search for Giant Planets Around Very Young
Nearby Late-type Dwarfs)

       The Near Infrared Camera (Camera Two) was used to make observations
of the very young, late-type, dwarf star SAO91772 as part of a search for
large planets.  Very young late-type dwarfs at distances closer than 30 pc
are excellent sites to provide a direct detection of extrasolar planets.
The observations were executed as scheduled, and no anomalies were noted.

   1.23 Completed NIC/1/2/3 7227 (A Search for Low Mass/Sub-Luminous
Companions to M-Stars)

       The Near Infrared Camera (Camera One, Two and Three) was used to
make a search for low mass/sub-luminous companions to the low mass M class
star LP944-20.  Knowledge of stellar and sub-stellar masses and
luminosities at and below the ~0.08 M{sun} H-burning limit is of
fundamental importance.  A dark calibration image was also taken.  The
observations were completed as planned, and no problems were reported.

   1.24 Completed NIC/2/STIS/CCD/WF/PC-2 7220 (Imaging of Quasar Host Galaxies)

       The Near Infrared Camera (Camera Two), the Space Telescope Imaging
Spectrograph (CCD), and the WF/PC-2 were used to make direct imaging
observations of the host galaxy for the broad absorption line quasar
PG1148+545.  The observations were completed as planned, and no anomalies
were reported.

   1.25 Completed NIC/2 7892 (Narrow-band Imaging of BAL QSOs)

       The Near Infrared Camera (Camera Two) was used to make narrow band
observations of the BL-Lac (BAL) UM141.  The detection of extended
emission-line gas structures in BAL QSOs would offer another means of
investigating the BAL QSO phenomenon as well as establishing a new probe of
material in galaxies at high redshift.  The observations were completed as
planned, and no problems were reported.

   1.26 Completed WF/PC-2 6660 (White Dwarf Distance and Precision Age For
Globular Clusters)

       The WF/PC-2 was used to make observations of the white dwarfs which
are located in the globular cluster NGC-104.  This proposal is aimed at
using the white dwarf cooling sequence for the calibration of the globular
cluster distance scale. The determination of accurate distances is a
critical prerequisite for the estimate of reliable cluster ages.  The
observations were completed as planned, and no anomalies were reported.

   1.27 Completed WF/PC-2 8071 (HDF-South Flanking Fields)

        The WF/PC-2 was used to make observations of the distant object
SAO255267 as part of the HDF-South flanking field study.  This program is
designed to provide coverage around the HDF-South field and to provide a
deep optical images of the NICMOS HDF-South field.  The images were
completed as planned, and no problems were reported.

   1.28 Completed WF/PC-2 6540 (Imaging Circumstellar Nebulae Around
Luminous Blue Variables in the Magellanic Clouds)

       The WF/PC-2 was used to make observations of the curcumstellar
nebula around the luminous blue variable star HD5980 which is located in
one of the Magallanic Clouds.  The objectives are to study the distribution
of the ionized gas and dust in order to determine the morphology and
physical properties of the circumstellar nebulae, by observing them in a
narrow, line-free V continuum filter and in the H Alpha emission line.  The
observations were executed as scheduled, and no anomalies were noted.

   1.29 Completed NIC/1/2/3 7859 (Blue Compact Dwarf Galaxies -- Young or Old?)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of the compact young dwarf galaxy UGC-6541.  These blue
compact dwarf galaxies challenge models of galaxy formation to explain the
presence of small, low-metallicity galaxies experiencing vigorous bursts of
star formation.  The observations were completed as scheduled, and no
problems were reported.

   1.30 Completed WF/PC-2 8059 (POMS Test Proposal: WF-2 Targeted Parallel
Archive Proposal)

       The WF/PC-2 was used to make observations in parallel with the prime
science observations.  The parallel opportunities available with WF/PC-2 in
the neighborhood of bright galaxies are treated in a slightly different way
from the normal pure parallels.  Local group galaxies offer the opportunity
for a closer look at young stellar populations.  The observations were
completed as planned, and no anomalies were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 35
                                        Successful : 35

                          Scheduled Reacquisitions : 16
                                        Successful : 16

   2.2 FHST Updates:

                              Scheduled : 56
                             Successful : 56

   2.3 Operations Notes:

       The observations beginning today mark the beginning of the
two-week-long Hubble Deep Field - South (HDF-S) campaign.

       Using ROP SR-1, the SSR EDAC error counter was cleared ten times.

       The GRGT Proficiency Test was completed successfully at 268/1716Z.
The STOCC executed NOOP and FIVEBLCK command procedures, which were
supported by the on-going SN Customer 48-hour MDM/IP Acceptance Test (MAT),
and returned to the HGA configuration at the end of the test.

      The MAT status:  there were eight data hits noted between 268/0941Z
and 269/0857Z, with minor frames ranging between 8 and 16; there were three
additional data hits between 269/0941Z and 269/1200Z; all 1Meg real-time
data was received without incident.  Operations personnel returned to the
legacy system at 269/1200Z.

       Per HSTAR 6694, a NICMOS EDAC single bit error occurred at
270/044056Z.  At 270/0720Z, the NICMOS internal log was dumped and the
ground system limit was changed to 20.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH